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RU2006131437A - Носитель записи с информацией о наличии защиты от копирования и способ записи данных на носитель записи - Google Patents

Носитель записи с информацией о наличии защиты от копирования и способ записи данных на носитель записи Download PDF

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Publication number
RU2006131437A
RU2006131437A RU2006131437/28A RU2006131437A RU2006131437A RU 2006131437 A RU2006131437 A RU 2006131437A RU 2006131437/28 A RU2006131437/28 A RU 2006131437/28A RU 2006131437 A RU2006131437 A RU 2006131437A RU 2006131437 A RU2006131437 A RU 2006131437A
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RU
Russia
Prior art keywords
information
recording medium
copy protection
recorded
control information
Prior art date
Application number
RU2006131437/28A
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English (en)
Other versions
RU2378718C2 (ru
Inventor
Сан Вун СУ (KR)
Сан Вун СУ
Чин Ен КИМ (KR)
Чин Ен Ким
Original Assignee
Эл Джи Электроникс Инк. (Kr)
Эл Джи Электроникс Инк.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR10-2003-0008317A external-priority patent/KR100484443B1/ko
Application filed by Эл Джи Электроникс Инк. (Kr), Эл Джи Электроникс Инк. filed Critical Эл Джи Электроникс Инк. (Kr)
Publication of RU2006131437A publication Critical patent/RU2006131437A/ru
Application granted granted Critical
Publication of RU2378718C2 publication Critical patent/RU2378718C2/ru

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • G11B19/122—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of an identification or authentication mark
    • G—PHYSICS
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    • G—PHYSICS
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    • G—PHYSICS
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    • G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G11B20/0026—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored as a barcode
    • G11B20/00268—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored as a barcode said barcode being recorded in a burst cutting area [BCA]
    • G—PHYSICS
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    • G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G11B20/00376—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored by varying the pit format, e.g. depth, width, length or edge positions
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    • G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
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    • G11B20/00485—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier
    • G11B20/00492—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier wherein content or user data is encrypted
    • G—PHYSICS
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    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
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    • G11B20/00601—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium wherein properties of tracks are altered, e.g., by changing the wobble pattern or the track pitch, or by adding interruptions or eccentricity
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    • G11B20/00753—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags
    • G—PHYSICS
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    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Storage Device Security (AREA)

Claims (20)

1. Носитель записи, включающий в себя
зону управляющей информации, которая содержит множество блоков управляющей информации, предназначенных для управления записью или воспроизведением данных, которые должны записываться на носитель записи или воспроизводиться с него, где, как минимум, первый по порядку блок управляющей информации содержит идентификатор, указывающий на наличие на носителе записи информации защиты от копирования, при этом информация защиты от копирования необходима для системы защиты от копирования; и область данных, где записаны или должны быть записаны данные.
2. Носитель записи по п.1, где множество блоков управляющей информации записано в зоне управления в углублениях расположенных вдоль волнистой линии с фазовой модуляцией.
3. Носитель записи по п.2, где зона управления представляет собой нулевую дорожку носителя записи.
4. Носитель записи по п.3, где носитель записи представляет собой оптический диск, каждый блок управляющей информации включает в себя информацию о диске, которая содержит, как минимум, информацию о типе диска, информацию о размере диска, информацию о структуре диска и информацию о расположении области данных.
5. Носитель записи по п.4, где каждый блок управляющей информации содержит информацию, которая включает в себя, как минимум, те же значения, что и другие блоки.
6. Носитель записи по п.1, где информация защиты от копирования содержит ключ для кодирования/декодирования основных данных.
7. Носитель записи по п.6, где информация защиты от копирования выборочно или неоднократно записывается соответственно в другой зоне носителя записи.
8. Носитель записи по п.6, где идентификатор или информация защиты от копирования, соответственно, записываются в другой зоне носителя записи.
9. Носитель записи по п.8, где идентификатор обозначает наличие информации защиты от копирования в одном из байтов первого блока управляющей информации.
10. Носитель записи по п.8, где область записи информации защиты от копирования заполнена значением "00", если идентификатор обозначает, что информация защиты от копирования отсутствует.
11. Носитель записи по п.6, где идентификатор и информация защиты от копирования записаны на нулевой дорожке носителя записи, при этом за идентификатором следует информация защиты от копирования.
12. Способ записи данных на носителе записи, заключающийся в том, что
(a) генерируют множество блоков управляющей информации для управления записью или воспроизведением данных, которые записаны или должны быть записаны на носителе записи, где, как минимум, в первый по порядку блок управляющей информации включают идентификатор, который обозначает наличие информации защиты от копирования на носителе записи, при этом информация защиты от копирования необходима для системы защиты от копирования; и
(b) записывают множество блоков управляющей информации в определенной области носителя записи.
13. Способ по п.12, где на этапе (b) множество блоков управляющей информации записывают на нулевой дорожке носителя записи.
14. Способ по п.13, где носитель записи представляет собой оптический диск, в каждый блок управляющей информации включают информацию о диске, которая содержит, как минимум, информацию о типе диска, информацию о размере диска, информацию о структуре диска и информацию о расположении области данных.
15. Способ по п.14, где в каждый блок управляющей информации включают информацию, которая включает в себя, как минимум, один повтор каждого значения.
16. Способ по п.12, где дополнительно
(c) записывают основные данные в области основных данных, где основные данные защищены от копирования с помощью информации защиты от копирования, которая содержит значение ключа.
17. Способ по п.16, где дополнительно
(d) записывают информацию защиты от копирования в зоне, отличной от зоны, где записан каждый блок управляющей информации, с учетом идентификатора.
18. Способ по п.17, где на этапе (d) в зоне, где должна быть записана информация защиты от копирования записывают значение "00", если идентификатор обозначает, что информация защиты от копирования отсутствует.
19. Способ по п.17, где на этапе (d) информацию защиты от копирования записывают неоднократно.
20. Способ по п.12, где на этапе (b) в одном из байтов первого блока управляющей информации записывают идентификатор, который обозначает наличие информации защиты от копирования.
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RU2378718C2 (ru) 2010-01-10
EP1863030A3 (en) 2008-04-23
CN1698102A (zh) 2005-11-16
TW200423084A (en) 2004-11-01
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